1020125302313 has 4 divisors (see below), whose sum is σ = 1098596479428. Its totient is φ = 941654125200.

The previous prime is 1020125302309. The next prime is 1020125302351. The reversal of 1020125302313 is 3132035210201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 341813283904 + 678312018409 = 584648^2 + 823597^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020125302313 - 2² = 1020125302309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020125302303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39235588538 + ... + 39235588563.

It is an arithmetic number, because the mean of its divisors is an integer number (274649119857).

Almost surely, 2^{1020125302313} is an apocalyptic number.

1020125302313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1020125302313 is a deficient number, since it is larger than the sum of its proper divisors (78471177115).

1020125302313 is an equidigital number, since it uses as much as digits as its factorization.

1020125302313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78471177114.

The product of its (nonzero) digits is 1080, while the sum is 23.

The spelling of 1020125302313 in words is "one trillion, twenty billion, one hundred twenty-five million, three hundred two thousand, three hundred thirteen".